package com.wanmait.happyheating.util;

import org.springframework.util.DigestUtils;

public class AdminMD5Utils {
    public static String md5(String str){
        if(str==null)
        {
            return null;
        }
        return DigestUtils.md5DigestAsHex(DigestUtils.md5DigestAsHex(str.getBytes()).substring(5,29).getBytes());
    }
}
